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(No Model.) 4 Sheets-Sheet l.

A. JUNGHAUS.

WATCH.

Patented Sept. 2O,l 1887.

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(No Model.) 4 sheets-sheen 2. A. JUNGHAUS.

WATCH.

No. 370,146. PatentedrSept. 20, 1887*.

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WATCH.

Patented Sept. 20, 1887.

(No Mogen 4 sheets-.sheet 4.

A. JUNGHAUS.

WATCH. y No. 370,146. Patented Sept. Z0, 1.887.

UNITED STATES PATENT OFFICE.

ARTHUR JUNGHANS, 0E soHRAMRERG, WRTEMRERG, GERMANY, AssiGNoR To GEBRUDERJUNGHANS, oE sAME PLAGE.

WATCH.

SPECIFICATION forming part of Letters Patent No. 370,146, datedSeptember 20, 1887.

Application lcd February-i8,

T0 all 10700711. t 77mg/ concern:

Be it known that I, ARTHUR JUNGHANS, watchn1anufacturer, ofSchramberg,Kingdom of Viirtemberg, Germany, have invented certain newand useful Improvements in Watches, of which the following is aspecification.

My invention consists of a watch mechanism having the followingadvantages: first, possibility of providingthe watch with a very strongmainspring; second, easily working winding-up mechanismin spite of theextraer dinary strength of the mainspring, in combination with amechanism for setting the hands by the pendant; third, strong toothedwheels and a cheap escapement can be employed which work with the utmostprecision,notwithstanding their nish and cost.

In the accompanying drawings, Figure l shows the winding-up mechanism asit may be seen on the movement when thelatter is taken out of its case.Fig. 2 shows the barrel and the mainspring after removing the windingupmechanism. Fig. Sis a section through x y of Fig. 1. Fig. 4 is a viewofthe work after removing the plate B. Fig. 5 shows the wheels placedunder the dial. Figs. 6, 7, and Sshow separately the pieces whichcompose the watch-case and the winding-up ring. Fig. 9 is a longitudinalsection through the case, and Fig. l() is a cross-section of the same.

In all the figures similar letters refer to similar pieces.

. The movementis between two plates, A and B, which are connectedtogether by four pillars, b. The works are held within the case M eitherby means of three projections, c, formed upon the periphery of plate A,resting upon flanges s of the case M, or in any usual manner employedfor fastening the movements into watch-cases. On the center of plate Bthere is affixed a pillar, C, which becomes the pivot for thebarrel-wheel D, the ratchet-wheel E, and the winding-up lever F,

Fig. 1.

The barrel D is composed of a large gearwheel having ve pins, d. Theouter end of the mainspring G is affixed to one ot those pins. The otherpins are intended to maintain the mainspring in place when the same isunmoved. The inner end of the mainspring 1857. Serial No. 228,021. (Nomodel.)

G is affixed to a sleeve, e, which is of one piece with theratchet-wheel E, Fig. 2. A clickspring, g, affixed to plate B, preventsthe turning back of the ratchet-wheel E, and a lever, F, which isprovided with a click, f, which moves upon the pivot C, causes theratchet E to turn and to wind up the mainspring when it is moved backand forth. This motion is produced by'means ofthe stem J. The pendant Kis affixed to the ring-L, Fig. 7, which slides on the periphery of thewatch-case M, between the iillet m and glass-bezel N.

The case M is provided with a slit, n, in which the stem J slides. Thecrown K is connected with the stem and pinion Z, which pinion is uponthe stern and acts upon the usual hand-setting gear-wheels through themedium of a pinion, r, and a sliding crownA pinion, c', when thepushpiece I and lever are acted upon and the crown turned.

The setting of the hands canonly take place when the pinions Z and r arein gear. This is the case when the pendant is placed bey ond twelve oclock. The barrel-wheel D gears into a double pinion, O, placed on theborder of the plate, and which transmits the motion of barrel-wheel Dtothe pinion of the center wheel, P, by means of an intermediate wheel,0. Wheel P acts upon the pinion of a second wheel, Q, which engages withthe pinion of a third wheel, R. The latter drives the pinion andescapement-wheel S, which, as well as the balance-wheel T, is the plateA.

The arbor of the escapementwheel S and balance-wheel T are supported atone end by the plate B andat the other end by the bridges U and V. (SeeFig. 5.)

The large dimensions of the parts render the manufacturing of this watchso easy that no special workmen are required.

The winding up of the mainspring--that is to say, the to-and-fro motionof the lever F and of its click f-m21y also be produced by turning toand fro the metal case M of the watch`case constructed as shown in Fig.10.

The mechanism of the watch is affixed by means of screws n to a ring, L,which carries two guide-blocks, m', in which slide the in-`wardly-turned edge u of the metal case M.

placed in an opening inv ICO The latter is provided with a pin, m, (seeFig. 9,) which engages with thelever Fin any desired manner, so as tetransmit to the latter its own to-and-fro motion to Wind up themalnspring.

'Ihe pendant II is afixed through the ring L to the ring Lby means ofascrew, k, which secures at the same time the rings L and L together.The spring g, which prevents a back motion of the ratchetwheel E, isaffixed to ring L or to the plate ofthe Worlz.

I claim as my invention- 1. In Watches, the combination of the pillar C,placed in the center of the Watch, With a barrel-Wheel, D, having fiveor more pins, d, a strong mainspring, G, a ratchetwheel, E, theclick-spring g, and the ratchet-lever F, having a elickspring,f,substantially as shown and described, and for the purposes set forth.

2. The combination, with the case M, having a slit, a, the ring L,pendants K,and crown K, of a stem, J, ratchetlever F, and ratchetwheelE, for winding up the mainspring, the pinions Z and 1', push-piece I andits lever, and the crown-pinion z, for setting the hands upon theshifting of the lever F, substantially as and for the purposesspecified.

3. The combination of a case, M, having a slit, n, a ring, L, bearingthe pendant K, provided With a Crown, K, a stem, J, and pinion I, andpinion r, and the bezel N,substantially as shown and described, and forthe purposes specified.

4. The combination, with the case, ring L, having the work-guides m m',which. slide, the edge a of the metal case M', and pin m, the Winding-uplever F, and mechanism connected therewith and to the mainspring, asshown and described, and for the purposes set forth.

ARTHUR JUNGHANS- XVitnesses:

OTTO MEWns, A. SCHNEIDER,

